The open source alternative to Twilio
Engage with your customers with voice or messaging with a single, easy-to-use platform.
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Applications
Voice Applications are first-class citizens with supports for verbs like Play, Say, Gather, etc.
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Authentication
Keep your business safe with project-level authentication based in OAuth2 and JWT tokens.
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Storage
Store, organize, and serve your sounds on S3 buckets and user them later for analysis.
Speech APIs
Unlock Text-to-Speech and Automatic Speech Recognition potential in your apps.
capabilities 🛠️
The SDKs and tooling to help build your apps, faster.
Create smart voice applications that meets your business needs without the clutter of unneeded features or historically burdensome customixations.
const VoiceServer = require("@fonoster/voice").default;
new VoiceServer().listen(async (req, voice) => {
const { ingressNumber, appRef } = req;
console.log(`Ingress Number: ${ingressNumber}`);
console.log(`App Reference: ${appRef}`);
await voice.answer();
await voice.say("Hello and goodbye!");
await voice.hangup();
});
// Your app will live at tcp://127.0.0.1:50061
// and you can easily publish it to the Internet with:
// ngrok tcp 50061
const { Client, Calls } = require("@fonoster/sdk");
const client = Client({
accessKeyId: "WO00000000000000000000000000000000"
});
client.loginWithApiKey("your-api-key", "your-api-secret")
.then(async () => {
const response = await new Calls(client).createCall({
from: "+18287854037",
to: "+17853178070",
appRef: "3e61ecb7-a1b6-4a93-84c3-4f1979165bca"
});
console.log(response); // successful response
}).catch(console.error);
Thank you!!
— Fonoster (@fonoster) May 2, 2023
We now have over 300 members in our Discord community!
From Open Source enthusiasts to telephony experts, we thank you for making this possible 🎉👏💚 pic.twitter.com/XjyOWgSncE
community 🥳
Join our amazing community of contributors.
Supported by a growing community of advocates, contributors, and heroes.
pricing 💸
Simple, straight-forward pricing.
Free
Rate-limited plan for quickly and easily learning and standing up a prototype app.
- 1 Workspace
- 1 Domain
- 30 mins/mo
- 1GB Storage
- 1-week log retention
- Community support
Pro
Perfect for small and medium businesses with applications going into production.
- 10GB Storage
- Unlimited Workspaces
- Unlimited Domains
- 520 mins/mo free then pay-as-you-go
- 30-day log retention
- Email support
advanced
The highest level of security, regulatory compliance, performance, and scalability.
- Technical support with SLAs
- Volume commitment pricing
- Technical onboarding
- Single Sign-On (Coming Soon)
- Customer Success Manager
testimonials 🥰
What our people are saying about us.
“The one and only cloud-first SIP server!”
I came across Routr, which seems to be the one and only cloud-first Kubernetes-ready SIP server on the planet!
“Awesome community!”
I really love this community and I will like to be a contributor. I am currently working on some use cases with Fonoster.
“Rock on!”
Heya pedro! just came across this project in the last hour but love everything about it on first pass
FAQs 🤔
Questions? We’ve got answers.
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Is the self-hosted version free?Yes, you can self-host it and use your Community Edition for free.
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How long will the free plan remain free?We're exploring ways to keep the free plan forever. The open-source version will always be available for self-hosting.
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Do you offer special programs for government and public sector customers?Yes we do. Please get in touch with us to learn more.
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Do you offer special programs for non-profit organizations, open source projects, or educational institutions?Yes, we offer special rates to organizations that do good things worldwide. If you’d like to apply for a concession, please contact us, and we’ll be glad to get to know your work.
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How do I report issues and get support?Users in the free plan can raise issues in the issue tracker or ask questions among GitHub discussions. You can also check our support page for additional support options.